Process for the preparation of a polyamide
US-9850348-B2 · Dec 26, 2017 · US
from aromatic diamines and aromatic dicarboxylic acids with both amino and carboxylic groups aromatically bound
from aromatic diamines and aromatic dicarboxylic acids with both amino and carboxylic groups aromatically bound · Cooperative Patent Classification (CPC)
Chemical and metallurgical processes, compounds, and materials.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | C08G69/32 |
| Official title | from aromatic diamines and aromatic dicarboxylic acids with both amino and carboxylic groups aromatically bound |
| Display label | from aromatic diamines and aromatic dicarboxylic acids with both amino and carboxylic groups aromatically bound |
| Total patents | 277 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 33 |
| 2016 | 20 |
| 2017 | 26 |
| 2018 | 24 |
| 2019 | 17 |
| 2020 | 27 |
| 2021 | 26 |
| 2022 | 29 |
| 2023 | 24 |
| 2024 | 25 |
| 2025 | 21 |
| 2026 | 5 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Sheets and fibrids comprising a mixture of poly(m-phenylene isophthalamide) and copolymer made from 5(6)-amino-2-(p-aminophenyl)benzimidazole
US-9663875-B2 · May 30, 2017 · US
Porous layer for nonaqueous electrolyte secondary battery separator, and nonaqueous electrolyte secondary battery laminated separator
US-2017141372-A1 · May 18, 2017 · US
Composite semipermeable membrane
US-2017136422-A1 · May 18, 2017 · US
Composite semipermeable membrane
US-2017120201-A1 · May 4, 2017 · US
Polymeric matrices formed from monomers comprising a protected amine group
US-9636643-B2 · May 2, 2017 · US
Spiral-type separation membrane element
US-2017007969-A1 · Jan 12, 2017 · US
Polycarbonate copolymer, and coating liquid and electrophotographic photosensitive body using same
US-9529285-B2 · Dec 27, 2016 · US
Method for granulating polyamide or polyamide composition
US-2016347915-A1 · Dec 1, 2016 · US
Method for producing composite semipermeable membrane
US-2016339396-A1 · Nov 24, 2016 · US
Highly heat-resistant composite material with excellent formability and production method thereof
US-2016326399-A1 · Nov 10, 2016 · US
Polyamide resin, epoxy resin compositions, and cured articles thereof
US-9480154-B2 · Oct 25, 2016 · US
Compound, poly(imide-amide) copolymer, and an article including the poly(imide-amide) copolymer
US-9447031-B2 · Sep 20, 2016 · US
Self-healing capacitor and methods of production thereof
US-2016254092-A1 · Sep 1, 2016 · US
Solution of aromatic polyamide for producing display element, optical element, illumination element or sensor element
US-2016208096-A1 · Jul 21, 2016 · US
Para-type wholly aromatic copolyamide drawn fiber and method for producing the same
US-9388512-B2 · Jul 12, 2016 · US
Aromatic polyamide and film-forming composition containing same
US-9382381-B2 · Jul 5, 2016 · US
Carbon-dioxide-separating membrane
US-9381472-B2 · Jul 5, 2016 · US
Hardmask composition and method of forming patterns using the hardmask composition
US-9348229-B2 · May 24, 2016 · US
Active polymeric filters
US-9345997-B2 · May 24, 2016 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C08G69/32?
- CPC C08G69/32 is the Cooperative Patent Classification code for “from aromatic diamines and aromatic dicarboxylic acids with both amino and carboxylic groups aromatically bound.”
- How many patents are filed under CPC C08G69/32 (from aromatic diamines and aromatic dicarboxylic acids with both amino and carboxylic groups aromatically bound)?
- Our database includes 277 publications tagged with this CPC code.
- Is patent activity under CPC C08G69/32 growing?
- Publication counts under this code: 25 in 2024 vs 21 in 2025 (latest complete years).